Wallpaper Calculator

Wall Width (feet)

Wall Height (feet)

Wallpaper Roll Width (inches)

Wallpaper Roll Length (feet)

Pattern Repeat (inches, if any)

Number of Doors and Windows

Average Opening Size (sq ft)

Calculation Results

Total Wall Area

0 sq ft

Net Wall Area

0 sq ft

Area Per Roll

0 sq ft

Rolls Required

0 rolls

About Our Wallpaper Calculator

Welcome to our comprehensive Wallpaper Calculator tool, designed to make your home improvement projects easier and more efficient. This free tool helps you accurately determine how many wallpaper rolls you’ll need for your project, saving you time, money, and potential frustration.

Why Use Our Wallpaper Calculator?

Calculating wallpaper requirements can be tricky, especially when accounting for pattern repeats, doors, windows, and other factors that affect the final amount needed. Our Wallpaper Calculator takes all these variables into consideration to provide the most accurate estimates possible.

Accurate Estimates

Our tool factors in wall dimensions, pattern repeats, and room openings for precise calculations.

Save Money

Avoid buying too many or too few rolls by getting exact measurements before purchasing.

User-Friendly

Simple interface with clear instructions makes calculating your wallpaper needs quick and easy.

How to Use the Wallpaper Calculator

Using our Wallpaper Calculator is straightforward. Simply enter the following information:

Required Measurements

Wall Width and Height – Measure your walls in feet
Roll Dimensions – Enter the width (in inches) and length (in feet) of your wallpaper rolls
Pattern Repeat – If your wallpaper has a repeating pattern, enter the repeat distance in inches
Doors and Windows – Enter the number and average size of openings to exclude them from the calculation

Understanding Your Results

After clicking “Calculate,” you’ll receive four key pieces of information:

Total Wall Area – The total surface area of your walls in square feet
Net Wall Area – The wall area minus doors and windows
Area Per Roll – How many square feet one roll of wallpaper will cover
Rolls Required – The number of wallpaper rolls you’ll need to purchase

Tips for Wallpaper Project Success

To ensure your wallpapering project goes smoothly, consider these professional tips:

Always add 10-15% extra for mistakes, complex patterns, or tricky installations
Purchase all rolls from the same batch to ensure consistent color and pattern
Confirm your wallpaper pattern repeat before ordering
Measure each wall individually if your room isn’t perfectly rectangular
Consider waste factors when working with intricate patterns or unusual wall shapes

Frequently Asked Questions

Why do I need to account for pattern repeat?

Pattern repeat refers to the vertical distance before a pattern on wallpaper repeats itself. Accounting for pattern repeat is crucial because it affects how the wallpaper strips align and how much material you’ll need. Larger pattern repeats typically require more wallpaper as there’s more waste during matching.

Should I order extra wallpaper beyond what the calculator suggests?

Yes, it’s generally recommended to order 10-15% more wallpaper than the calculated amount. This extra material accounts for mistakes, complex cutting areas, pattern matching, and future repairs. It’s better to have slightly too much than not enough, especially since dye lots can vary between manufacturing batches.

How do I measure walls for unusual room shapes?

For rooms with unusual shapes, divide the walls into rectangular sections and calculate each separately. Add these areas together for your total wall area. For sloped ceilings or other irregular shapes, it’s best to take the maximum height and width measurements to ensure you have enough coverage.

What’s the difference between standard and double rolls?

A standard roll of wallpaper in the US typically covers about 30-35 square feet, while a double roll covers about 60-70 square feet. Our calculator uses your specific roll dimensions to provide accurate calculations regardless of roll size. Always check your product’s specifications to enter the correct dimensions.

Our Wallpaper Calculator takes the guesswork out of your home decoration project. By providing accurate measurements and following our tips, you’ll be well-prepared for a successful wallpapering experience. Remember that proper planning is the key to any successful home improvement project!